<!--
  This file is a part of the open-eBackup project.
  This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
  If a copy of the MPL was not distributed with this file, You can obtain one at
  http://mozilla.org/MPL/2.0/.
  
  Copyright (c) [2024] Huawei Technologies Co.,Ltd.
  
  THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
  EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
  MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
  -->


<!DOCTYPE html
  PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en-us" xml:lang="en-us">
<head>
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
   
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="DC.Type" content="topic">
<meta name="DC.Title" content="Function Overview">
<meta name="product" content="">
<meta name="DC.Relation" scheme="URI" content="hive_00003.html">
<meta name="prodname" content="">
<meta name="version" content="">
<meta name="brand" content="30-OceanProtect Appliance 1.5.0-1.6.0 Help Center">
<meta name="DC.Publisher" content="20241029">
<meta name="prodname" content="csbs">
<meta name="documenttype" content="usermanual">
<meta name="DC.Format" content="XHTML">
<meta name="DC.Identifier" content="hive_00005">
<meta name="DC.Language" content="en-us">
<link rel="stylesheet" type="text/css" href="public_sys-resources/commonltr.css">
<title>Function Overview</title>
</head>
<body style="clear:both; padding-left:10px; padding-top:5px; padding-right:5px; padding-bottom:5px"><a name="hive_00005"></a><a name="hive_00005"></a>

<h1 class="topictitle1">Function Overview</h1>
<div><div class="section"><h4 class="sectiontitle">Backup</h4><ul><li>Full backup: <span id="hive_00005__en-us_topic_0000001862053249_ph48664393114">backs up all data at a specific point in time, regardless of whether the data has been modified since the last backup. In the case of large data volumes, this backup type may take a long time and occupy a large amount of storage space.</span></li><li><span id="hive_00005__en-us_topic_0000001862053249_ph0724454151718">Forever incremental (synthetic full) backup: backs up only the data that is added or modified since the first full backup. Compared with full backup, forever incremental backup significantly improves the backup efficiency in scenarios with large data volumes. If no full copy exists, the first forever incremental (synthetic full) backup will be a full backup, and incremental backups are performed subsequently. Copies generated by forever incremental (synthetic full) backups are forever incremental (synthetic full) copies, which improve the restoration performance and do not occupy extra space.</span></li><li>Rate limiting policy: limits the bandwidth for backup, replication, and archive.</li><li>Source deduplication: deduplicates backup data at the source end before the data is sent to the target end. This technology saves network transmission bandwidth and storage space. Only OceanProtect X series backup appliances and OceanProtect E1000 (with the OceanProtect used as backup storage) support source deduplication.</li><li>Backup link encryption: encrypts transmitted data during data backup to ensure data security. </li><li>Transmission and storage encryption: adopts the AES256 encryption algorithm to encrypt backup data.</li><li>Automatic retry upon failure: allows the system to automatically retry if a periodic backup job fails. The number of retries ranges from 1 to 5, and the wait time ranges from 1 to 30 minutes. For example, if the number of retries is set to 3 and the wait time is set to 5 minutes, the system retries for a total of three times at an interval of 5 minutes.</li></ul>
</div>
<div class="section"><h4 class="sectiontitle">Replication</h4><ul id="hive_00005__en-us_topic_0000001862053249_ul1627759153116"><li id="hive_00005__en-us_topic_0000001862053249_li816915753113">Backup copy replication: replicates backup copies from the source end to the target end. If a disaster occurs in the local data center, the replication copies can be used to restore service data. </li><li id="hive_00005__en-us_topic_0000001862053249_li1683335383118">Replication link encryption: encrypts data transmitted during remote replication based on IPsec policies created for the replication network logical ports on the storage devices at both ends of a replication link, ensuring data security. </li><li id="hive_00005__en-us_topic_0000001862053249_li1669412580315">Reverse replication: replicates the replication copy generated after replication of a backup copy back to the backup system where the backup copy resides. </li><li id="hive_00005__en-us_topic_0000001862053249_li5293151193212">Cascaded replication: replicates the replication copy generated after replication of a backup copy to another backup system. </li></ul>
</div>
<div class="section"><h4 class="sectiontitle">Archive</h4><ul id="hive_00005__en-us_topic_0000001862053249_ul291217773211"><li id="hive_00005__en-us_topic_0000001862053249_li1810328165110">Manual archive (supported only in 1.6.0 and later versions) or SLA-based periodic archive is supported. SLA is short for service level agreement.</li><li id="hive_00005__en-us_topic_0000001862053249_li123915583213">Backup/Replication copies that need to be retained for a long time can be archived to object storage. </li><li id="hive_00005__en-us_topic_0000001862053249_li88191920143218">Backup/Replication copies that need to be retained for a long time can be archived to tape libraries. </li></ul>
</div>
<div class="section"><h4 class="sectiontitle">Restoration</h4><ul id="hive_00005__en-us_topic_0000001862053249_ul691518483322"><li id="hive_00005__en-us_topic_0000001862053249_li18600174653218">Copy-based restoration to the original or a new location: can be implemented using backup copies, reverse replication copies, cascaded replication copies (data cannot be restored to the original location), archive copies (<span id="hive_00005__en-us_topic_0000001862053249_ph36996813016">data cannot be restored to the original location using the archive copies of replication copies and cascaded replication copies</span>), and replication copies (data cannot be restored to the original location). </li></ul>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="hive_00003.html">Overview</a></div>
</div>
</div>

<div class="hrcopyright"><hr size="2"></div><div class="hwcopyright">Copyright &copy; Huawei Technologies Co., Ltd.</div></body>
</html>